the cia opened up an glags into petraeus conduct. defense secretary leon panetta asked the joint chiefs to review ethics training for officers and eric holder commented on the petraeus affair said there was no security breach or threat to national security. susan mcginnis is in washington. susan, good morning. >> reporter: good morning. general petraeus may be asked about this extramarital affair but the focus today is on benghazi. petraeus went to libya after the killings and these leaders believe he has specific information no one else can offer. former cia director david petraeus is headed to capitol hill this morning to talk about the attacks on the u.s. consulate in benghazi. congressional leaders say he has a unique insight. >> director petraeus went to tripoli, he interviewed many of the people as i understand it that were involved. >> reporter: house senate intelligence members spent thursday interviewing officials. they were shown a video taken from cameras and drones flying overhead. >> it begins from when the incident, bef